Shuttle for looms



(No Model.)

L. STURGES. SHUTTLE FOR LOOMS.

No. 604,804. Patented May 31, 1898.

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NlTED STnTna FATTNT @TFlCEt SHUTTLE FOR LOOWES.

SPECIFICATION forming part of Letters Patent No. 604,804, dated May 31,1898.

Serial No. 641,585. (No model.)

To all whom, it may concern.-

Be it known that I, LEE STURGES, of Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inShuttles for Looms, of which the following is a specification.

This invention relates to improvements in sheet-metal shuttles forlooms, and has for its object to provide a practically seamlessconstruction in such articles, so as to materially reduce the cost ofmanufacture and at the same time produce a more perfect and durableshuttle.

The invention consists in the matters l1ereinafter set forth, and moreparticularly pointed out in the appended claims, and will be readilyunderstood, reference being had to the accompanying drawings, in WhichFigure 1 is a plan view of the sheet-metal blank from which the shuttleis formed. Fig. 2 is a plan View of the shuttle partially formed. Fig. 3is a side elevation of the same. Fig. 4 is aperspective view of thecompleted shuttle. Fig. 5 is a vertical longitudinal sectional view ofthe shuttle; and Figs. 6 and 7 are cross-sectional views taken on lines6 6 and 7 7, respectively, of Fig. 5.

Referring to said drawings, the blank A shown is of sheet metal(commonly sheetsteel) of suitable thickness and in its general shape isapproximately elliptical, with flattened or straight side margins, asindicated at a a. At each end the blank is provided with a pair ofintegral oppositely-disposed projections or lugs a a, which lugs, whenconsidered as being those portions of the blank lying entirely outsideof the lines of the ellipse, as indicated in dotted lines at a aresubstantially triangular in form, with their acute angles meeting at theextreme points of the blank.

The blank, shaped as described, is bent or struck up, by means of dies,into a seamless three-sided shell or shuttle A, substantiallyrectangular in cross-section throughout its main length and havingtapering pointed ends A which in their cross-sectional form merge fromthe rectangular form of the main portion of the shuttle gradually into acircular or nearly circular cross-sectional form at the points of theshuttle, the lines upon which the blank is bent or folded beingsubstantially as indicated in dotted lines at a Fig. 1,although it willof course be understood that the dies will perform a certain amount ofdrawin g in forming up the shell. The shell having been thus formed withits entire upper side open, as indicated in Fig. 2, the lugs 01. a arenext bent or formed over toward each other, so as to bring their outermargins a together and form a cover or deck portion a Figs. 4 and 5,over the extreme ends of the cavity of the shell. The hollow points thusformed are subsequently filled with metal, preferably by pouring moltenbrass or other suitable metal therein and allowing it to harden,therebymaking the points of the shuttle practically as strong and durable asthough formed from a solid piece of metal.

The construction just described is superior to all previousconstructions in sheet-metal shuttles in avoiding all seams in the bodyportion or shell of the shuttle and in thus not only effecting amaterial saving in the labor and cost of manufacture, but resulting in astronger and more durable shuttle for a given weight of material.

The particular construction of the devices by means of which the bobbinis held within the shuttle is not essential, inasmuch as said devicesform no part of the present invention and may be of any suitable orpreferred constructiou.

The devices illustrated herein are of a common and well-understoodconstruction and need not therefore be more particularly described.

I claim as my invention- 1. A shuttle constructed of sheet metal in theform of a seamless three-sided shell having tapered points and integraldeck portions at said points closing the ends of the otherwise openside.

2. A shuttle constructed of sheet metal in the form of a seamlessthree-sided shell having tapered points, provided with integral deckportions closing the ends of the otherwise open side, and provided withmetal filling occupying the cavities within the points beneath the deckportions.

. In testimony that I claim the foregoing as my invention I affix mysignature, in presence of two subscribing witnesses, this 19th day ofJune, A. D. 1897.

LEE STURGES.

NVitnesses:

Horn REED CODY, ALBERT I-I. GRAVES.

